Index: trunk/ippTools/share/difftool_todiffskyfile.sql
===================================================================
--- trunk/ippTools/share/difftool_todiffskyfile.sql	(revision 29363)
+++ trunk/ippTools/share/difftool_todiffskyfile.sql	(revision 29365)
@@ -13,5 +13,6 @@
     diffRun.bothways,
     diffRun.diff_mode,
-    diffSkyfile.path_base
+    diffSkyfile.path_base,
+    IFNULL(priority, 10000) AS priority
 FROM diffRun
 JOIN diffInputSkyfile USING(diff_id)
@@ -62,4 +63,5 @@
     ON diffInputSkyfile.diff_id = diffSkyfile.diff_id
     AND diffInputSkyfile.skycell_id = diffSkyfile.skycell_id
+LEFT JOIN Label ON Label.label = diffRun.label
 WHERE
 -- Ready to be processed
@@ -70,4 +72,5 @@
     AND diffSkyfile.data_state = 'update')
     )
+    AND (Label.active OR Label.active IS NULL)
 -- Ensure input warps are available
     AND (diffInputSkyfile.warp1 IS NULL
@@ -93,4 +96,2 @@
     AND stackTemplateSkyfile.quality = 0))
 
-
-
Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 29363)
+++ trunk/ippTools/src/difftool.c	(revision 29365)
@@ -480,4 +480,6 @@
     }
     psFree(where);
+
+     psStringAppend(&query, "\nORDER by priority DESC, diff_id");
 
     // treat limit == 0 as "no limit"